The 1769-IQ16 is a 16-point discrete input module for Allen Bradley CompactLogix and MicroLogix 1500 controllers. Designed for reliable monitoring of industrial devices, this module interfaces with photoelectric sensors, limit switches, and auxiliary contacts, providing robust signal acquisition in electrically noisy environments. Its bipolar sink/source design and optical isolation ensure both flexibility and protection for the backplane, making it ideal for general automation tasks.
| Feature | Specification |
|---|---|
| Catalog Number | 1769-IQ16 |
| Input Channels | 16 digital points |
| Voltage Category | 24V DC (Sink/Source) |
| Operating Voltage | 10–30V DC @ 30°C |
| Standard Input Current | 8.0 mA per point @ 24V DC |
| On-State Voltage | ≥10V DC |
| On-State Current | ≥2.0 mA |
| Off-State Voltage | ≤5V DC |
| Hardware Delay | 8.0 ms typical (On/Off transitions) |
| Backplane Current Draw | 115 mA @ 5.1V DC |
| Power Dissipation | 3.55 Watts max |
| Terminal Block | 1769-RTBN18 removable |
| Slot Width | 1 slot |
| Operating Temperature | 0–60°C (32–140°F) |
High-Reliability Inputs: 16 digital points in a compact module.
Bipolar Wiring: Supports both sink (NPN) or source (PNP) sensors.
Optical Isolation: Protects backplane from transients and electrical noise.
Compact Design: Chassis-less modular form factor reduces control panel footprint.
Simple Expansion: Snap-on installation for easy I/O growth.
General manufacturing automation
Assembly line monitoring
Material handling and conveyor systems
Food and beverage processing
Operator interface and push-button stations
Q: Can I mix sinking and sourcing sensors on the same module?
A: No. All 16 channels share a single common return, so all connected sensors must be of the same type (either all sinking or all sourcing).
Q: What happens if voltage drops below 10V DC?
A: The module may fail to register an “On” state reliably. Maintain the 10–30V DC range for consistent operation.
Q: Is the 1769-IQ16 hot-swappable?
A: No. The module does not support Removal and Insertion Under Power (RIUP). Always power down before replacing the module.
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